I see multiple posts PER DAY in groups saying the same thing... "I launched my vibe coded product, now what?". They really have no idea who they built it for, if it's even a software that someone needs, etc...
Always. Validate. First.
Before you start building your idea out, you need to validate it. Find the audience. Find a problem it's solving. Otherwise you'll have a VERY hard time getting paid users for it.